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Incorporating Cyber Layer Failures in Composite Power System Reliability Evaluations

Author

Listed:
  • Yuqi Han

    (College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Yunfeng Wen

    (College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Chuangxin Guo

    (College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Han Huang

    (State Grid Energy Research Institute, Beijing 102209, China)

Abstract

This paper proposes a novel approach to analyze the impacts of cyber layer failures ( i.e. , protection failures and monitoring failures) on the reliability evaluation of composite power systems. The reliability and availability of the cyber layer and its protection and monitoring functions with various topologies are derived based on a reliability block diagram method. The availability of the physical layer components are modified via a multi-state Markov chain model, in which the component protection and monitoring strategies, as well as the cyber layer topology, are simultaneously considered. Reliability indices of composite power systems are calculated through non-sequential Monte-Carlo simulation. Case studies demonstrate that operational reliability downgrades in cyber layer function failure situations. Moreover, protection function failures have more significant impact on the downgraded reliability than monitoring function failures do, and the reliability indices are especially sensitive to the change of the cyber layer function availability in the range from 0.95 to 1.

Suggested Citation

  • Yuqi Han & Yunfeng Wen & Chuangxin Guo & Han Huang, 2015. "Incorporating Cyber Layer Failures in Composite Power System Reliability Evaluations," Energies, MDPI, vol. 8(9), pages 1-23, August.
    • Handle: RePEc:gam:jeners:v:8:y:2015:i:9:p:9064-9086:d:54799
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    Citations

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    Cited by:

    1. Marilena Stănculescu & Sorin Deleanu & Paul Cristian Andrei & Horia Andrei, 2021. "A Case Study of an Industrial Power Plant under Cyberattack: Simulation and Analysis," Energies, MDPI, vol. 14(9), pages 1-20, April.
    2. Hantao Cui & Yichen Zhang & Kevin L. Tomsovic & Fangxing (Fran) Li, 2022. "Power electronics‐interfaced cyber‐physical power systems: A review on modeling, simulation, and cybersecurity," Wiley Interdisciplinary Reviews: Energy and Environment, Wiley Blackwell, vol. 11(6), November.

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